Results 91 to 100 of about 3,399,878 (278)

Probabilistic characterization of seepage‐induced tunnel face failure via a two‐phase double‐point material point method

open access: yesDeep Underground Science and Engineering, EarlyView.
To address seepage‐induced tunnel face collapse, this study develops a two‐phase double‐point MPM framework to capture large‐deformation hydro‐mechanical interactions. Incorporating a cementation‐based constitutive model with dynamic permeability updates, the model is successfully validated against saturated granular‐column collapse experiments ...
Yue Tong   +6 more
wiley   +1 more source

Experimental study on the influence of shale content in fault zone on fault friction coefficient based on circular shear test

open access: yesAin Shams Engineering Journal
Water injection in fault block oil and gas reservoirs can trigger fault activity, leading to leakage and potential earthquakes, which may cause significant natural and economic losses.
Lingdong Meng   +8 more
doaj   +1 more source

Numerical investigation of natural fracture activation and leakage risk during CO2 sequestration in depleted sandstone reservoirs

open access: yesDeep Underground Science and Engineering, EarlyView.
This study investigates the hydro‐mechanical response and fracture evolution in depleted sandstone reservoirs during CO2 injection, considering both direct wellbore injection and hydraulic‐fracture‐assisted injection. The graphical abstract illustrates how CO2 injection induces dynamic stress redistribution, leading to natural fracture activation ...
Haiyang Wang   +6 more
wiley   +1 more source

Analysis of lining force transmission coefficient and surrounding rock displacement in lined rock caverns for underground gas storage

open access: yesDeep Underground Science and Engineering, EarlyView.
This study derives an explicit expression for the lining force transmission coefficient of underground gas storage lined rock caverns (LRCs) via the complex variable function method, considering the displacement release coefficient. Taking the 1‰ tensile strain of surrounding rock as the criterion to determine lining thickness, it systematically ...
Yaohui Li, Jianping Yang, Weizhong Chen
wiley   +1 more source

Prediction method and application of the effective period of oil and gas formation by transport of oil source fault

open access: yesFrontiers in Earth Science
The effective period of hydrocarbon formation has a significant impact on oil and gas enrichment. Based on an analysis of the mechanism of oil and gas formation by oil source fault transport, the transport period is determined by both the activity period
Huijian Wen, Huijian Wen, Chao Wang
doaj   +1 more source

Reply to: Multiple induced seismicity mechanisms at Castor underground gas storage illustrate the need for thorough monitoring. [PDF]

open access: yesNat Commun, 2022
Cesca S   +8 more
europepmc   +1 more source

Other title: Underground storage tank ... annual report; Other title: UST annual report

open access: yes, 2009
Annual; Electronic coverage as of May 17, 2010: 2008-; Reporting period ends: Sept.
Ohio. Bureau of Underground Storage Tank Regulations.
core  

Reusing depleted oil and gas wells for geothermal energy: Feasibility, challenges, and a decision‐making framework for sustainable conversion

open access: yesDeep Underground Science and Engineering, EarlyView.
The graphical abstract presents a structured decision‐support framework for assessing the feasibility of converting depleted oil and gas wells into geothermal energy systems. The left panel illustrates a comprehensive, multi‐stage decision‐making framework progressing from prefeasibility screening and technical–economic analysis to policy alignment ...
Karolina Bieryt   +3 more
wiley   +1 more source

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